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Cell Phone System Technology
Nikola Kordic & Fabian BaijnauthMarch 30th, 2010
1. Intro2. How it Works3. 0G4. 1G5. 2G6. 3G7. 4G8. Conclusion9. References
Table of Contents
Cells
Base station:
Intro
1
How it works
2
0G
3
Start: Early 1950’s
MTA (Mobile Telephone System A)
MTB (Mobile Telephone System B)
0th Generation
1950’s◦ Direct dialing◦ Required base station.
MTA◦ Developed by Ericson.◦ Implementation: Sweden 1956
MTB◦ Weight (70 lbs. lighter)◦ DTMF (Dual-Tone multi frequency signal)
0th Generation (cont’d)
1G
4
Start: July 1978
Signal: Analog
Purpose: Voice Calls
Signal Transmission: Frequency Modulation◦Variable frequency
1st Generation
2G
5
Start: 1990’s
Signal: Digital
Finally Mobile !
Text Messaging
Media
2nd Generation
Signal: Digital◦ What does it bring?
◦ Non-Continuous Signal Broadcasting only when required
◦ Compression (Bandwidth) 1 Analog = 10 Digital
2nd Generation (cont’d)
Start:◦ Finland 1991
Mobility:◦ Weight: 200g
Speed:◦ Up to144kb/s
2nd Generation (cont’d)
6
Messaging:◦ Introduction to SMS
System – Person (1991) Person – Person (1993)
Media:◦ Ring Tones◦ Wallpapers
2nd Generation (cont’d)
Pros:◦ Added features◦ Compatible with 2G phones◦ Faster data rate
307kb/s◦ Transition between 2G and 3G
Cons:◦ Not full 3G
2.5G + 2.75G
3G
7
Release: October 1, 2001
Fast data rate
Live Streaming
Security
3rd Generation
Data Rate◦ 2mb/s
Streaming◦ TV◦ Radio
Security◦ Improved System
3rd Generation (cont’d)
4G
8
Faster data rate
HD broadcasting
4th Generation
9
Start: December 14th, 2009◦ Stockholm & Oslo
Calls:◦ VOIP
Support:◦ WiMax
IEEE 802.16e
4th Generation (cont’d)
Data rate:◦ 100mb/s download◦ 50mb/s upload
HDTV content
CDMA
4th Generation (cont’d)
Evolved
Compact
Necessity
iPhone users?
Conclusion
1. Yourdictionary.com. Computer Desktop Encyclopedia, 2000. Web. 13 Mar. 2010. <http://www.yourdictionary.com/computer/cellphone>.
2. VISIOgnomy.com. 16 Feb. 2005. Web. 14 Mar. 2010. <http://www.visiognomy.com/daily/>.
3. Torakom.com. Web. 13 Mar. 2010. <http://torakom.com/article_index.php?sub=article_show&art=41>.
4. Zanders.com. Web. 12 Mar. 2010. <http://www.zanders.co.uk/images/1dynatac8000x.jpg>.
5. Web-japan.org. Web. 20 Mar. 2010. <http://web-japan.org/kidsweb/hitech/mobile/images/second.jpg>.
References
6. ChinaVision.com. Web. 19 Mar. 2010. <http://blog.chinavasion.com/wp-content/uploads/2009/01/1g-and-2g-phones-copy.jpg>.
7. Baltimoresun.com. 5 Jan. 2009. Web. 23 Mar. 2010. <http://weblogs.baltimoresun.com/business/consuminginterests/blog/cellular/>.
8. Gaj-it.com. Web. 20 Mar. 2010. <http://www.gaj-it.com/wp-content/uploads/HTC-EVO-4G-Phone-e1269418950783.jpg>.
9. ImageShack.com. Web. 19 Mar. 2010. <http://imgcash6.imageshack.us/Himg2/scaled.php?server=2&filename=3gto4g1.png&xsize=640&ysize=480>.
References
Thank youAny Questions?
